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myxce/.wolf/bugs/bug-1951.md
Rongsong Shen 19be145d6f
docs(buglog): record Gitea sync for bug-1936..bug-1957 
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-10 10:14:39 +00:00

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id status status_updated status_note component severity timestamp last_seen occurrences files tags related fix_commits gitea_issue gitea_synced_status gitea_synced_hash
bug-1951 fixed 2026-10-10 apiserver crash 2026-10-10T08:15:14Z 2026-10-10T08:15:14Z 1
src/frontend/apiserver/backend/auth/config_file.go
apiserver
auth
config
crash
d3ce2982
382 fixed 0590e8ff3114

bug-1951: apiserver crashes on an auth.yaml without a config_file block (nil pointer)

Description

Observed: (source reading, .kiro/reviews/project-gap-review-2026-10-10.md (P0); to be confirmed by a failing test before the fix) backend/auth/config_file.go:39 reads cfg.ConfigFile.Users without checking cfg.ConfigFile for nil.

Expected: A missing block is a clear configuration error, not a panic. Impact: Crash at startup or login with a minimal auth.yaml. Found by: review: .kiro/reviews/project-gap-review-2026-10-10.md (P0)

Environment

  • OS: no /etc/os-release; Docker container; NixOS kernel; kernel Linux 6.18.33 x86_64
  • libc: glibc 2.42-47 (interpreter /nix/store/wb6rhpznjfczwlwx23zmdrrw74bayxw4-glibc-2.42-47/lib/ld-linux-x86-64.so.2)
  • Toolchain: gcc (GCC) 15.2.0, meson 1.9.1
  • Build: asan (xce.build)
  • Code: scheduler-framework @ 94472ee3-dirty
  • Deployment: any (found by source reading; the failing test that confirms it is named in Verification)

Reproduction

  1. Start the apiserver with an auth.yaml that selects config-file auth but has no config_file: block.
  • Frequency: deterministic (by code reading; confirmed by the RED test of the fix)
  • Evidence: the code sites quoted in Description; no logs kept.

Root cause

NewConfigFileProvider (backend/auth/config_file.go:39) dereferenced cfg.ConfigFile without a nil check.

Fix

Returns a clear configuration error when the config_file block is missing.

Verification

  • Test: TestNewConfigFileProvider_Errors/missing_config_file_block (backend/auth/config_file_test.go): RED panic: runtime error: invalid memory address or nil pointer dereference, GREEN after.
  • Suites: xce-build.sh all asan xce.build --incremental on the merged branch, 2026-10-10: all C suites Ok 155 / Fail 0, frontend Go unit tests ok, xceadmin tests ok; apiserver CGO_ENABLED=0 go test ./... (incl. middleware, router, cmd) ok
  • Live: n/a: unit/fixture-level verification only; no live deployment was run (follow-up)

References

  • Fix commit: d3ce2982 (on scheduler-framework; worker-branch original in the merge)
  • Review: .kiro/reviews/project-gap-review-2026-10-10.md